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作 者:王玉照 葛鹏江 刘继春[1] 邓建华[1] WANG Yuzhao;GE Pengjiang;LIU Jichun;DENG Jianhua(College of Electrical Engineering,Sichuan University,Chengdu 610065,Sichuan Province,China;Northwest Branch of State Grid Corporation of China,Xi’an 710048,Shaanxi Province,China)
机构地区:[1]四川大学电气工程学院,四川省成都市610065 [2]国家电网有限公司西北分部,陕西省西安市710048
出 处:《电网技术》2025年第3期1045-1055,I0056,共12页Power System Technology
基 金:国家自然科学基金项目(U2066209);国家电网有限公司西北分部科技项目(SGNW0000DZJS2310126)。
摘 要:为应对新能源高渗透率带来的强波动性,新型电力系统下需要构建合理的爬坡市场,以有效增强系统运行灵活性。目前爬坡市场存在参与主体一般仅为单一火电机组、且机组同时获得主能量与爬坡市场双重收益的问题。为此,提出了一种计入储能参与的电能量与爬坡市场联合出清方法。首先,根据系统净负荷变化和新能源出力预测误差确定系统爬坡需求;其次,基于电力市场经济调度模型得到系统自然爬坡能力,进而判断系统爬坡缺额量;再次,构建计入火电机组、储能、需求响应和弃风弃光全手段的主能量与爬坡市场联合出清模型,其中,火电机组采用虚拟报量-报价方式、储能采用最大爬坡容量与固定补偿方式参与市场,当火电机组与储能两者爬坡容量之和还不能满足爬坡需求时,依次采用需求响应和弃风弃光措施。最后,以某省份实际运行数据进行算例仿真验证所提方法的正确性,结果表明,所提出的全手段主能量与爬坡市场联合出清方法能最大限度调用系统的运行灵活性,同时在避免双重收益问题基础上提高新能源消纳率。A new type of power system needs to build a reasonable climbing market to effectively enhance the flexibility of system operation and cope with the strong volatility brought about by the high penetration rate of new energy sources.Currently,the only participants in the ramping market are generally thermal generators and usually receive the benefits of both the energy and ramping markets.For this reason,this paper proposes a method of joint clearing of electric energy and climbing market,including energy storage.First,the system climbing demand is determined based on the net load curve and the new energy output forecast error.Second,the natural climbing capacity of the system is determined based on the security-constrained economic dispatch model,which determines the amount of system climbing missing.Then,a joint clearing model of the electricity market and the creeping market will be constructed,in which thermal generating units,energy storage,demand-side response,and wind and solar abandonment are all involved.Among them,the thermal power generating units adopt the virtual volume-quote method to participate in the ramping market,and the energy storage adopts the maximum ramp-up capacity and fixed compensation to participate in the ramping market.When the sum of the ramping capacity of thermal generating units and energy storage still fails to meet the ramping demand,demand response and wind and solar abandonment will be used to maintain the power system's load balance.Finally,the proposed method is verified by an example simulation with actual operation data in a province.Simulation results show that the joint clearing method of the power and ramp-up market proposed in this paper can maximize the system's flexibility,avoid the double benefit problems,and improve the new energy utilization rate.
关 键 词:爬坡辅助服务 储能 现货市场 新能源消纳 出清模型
分 类 号:TM73[电气工程—电力系统及自动化]
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